Tides Today & Tomorrow in Southwest Harbor, ME

TIDE TIMES for Saturday, June 27, 2026
The tide is currently falling in Southwest Harbor, ME.
Next low tide : in 2h 17m at 3:27 am (0.6 ft)
Next high tide : 10:04 am (9.2 ft)
Sunset today : 8:21 pm
Sunrise tomorrow : 4:51 am
Moon phase : Waxing Gibbous (95% illuminated)
Tide Station Location : Station #8413564
Common Questions About Tides

Southwest Harbor, ME Tides - Apr 2050

DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
1Fri7:189.57:559.112:391.71:151.16:137:00Waxing Gibbous1Fri
2Sat8:149.68:469.41:371.52:071.06:117:01Waxing Gibbous2Sat
3Sun9:059.89:309.72:291.22:540.96:097:03Waxing Gibbous3Sun
4Mon9:5010.010:1010.13:150.93:360.76:087:04Waxing Gibbous4Mon
5Tue10:3110.210:4710.43:560.54:140.66:067:05Full Moon5Tue
6Wed11:0810.311:2110.64:350.34:490.56:047:06Full Moon6Wed
7Thu11:4410.311:5510.85:110.15:230.56:027:07Full Moon7Thu
8Fri12:2010.45:46-0.15:570.66:007:09Full Moon8Fri
9Sat12:2911.012:5610.36:21-0.16:320.65:597:10Waning Gibbous9Sat
10Sun1:0511.01:3510.26:59-0.17:100.75:577:11Waning Gibbous10Sun
11Mon1:4411.02:1710.17:40-0.17:520.85:557:12Waning Gibbous11Mon
12Tue2:2811.03:049.98:260.08:400.95:537:14Waning Gibbous12Tue
13Wed3:1810.83:579.89:170.19:351.05:527:15Third Quarter13Wed
14Thu4:1410.74:569.810:150.210:371.05:507:16Third Quarter14Thu
15Fri5:1710.66:009.911:170.211:440.85:487:17Third Quarter15Fri
16Sat6:2410.67:0510.312:220.15:477:18Waning Crescent16Sat
17Sun7:3110.88:0610.812:520.41:24-0.25:457:20Waning Crescent17Sun
18Mon8:3411.19:0411.51:56-0.12:23-0.55:437:21Waning Crescent18Mon
19Tue9:3211.59:5712.02:55-0.83:18-0.85:427:22Waning Crescent19Tue
20Wed10:2711.710:4712.43:50-1.34:10-0.95:407:23New Moon20Wed
21Thu11:1911.811:3612.54:42-1.65:00-0.95:387:25New Moon21Thu
22Fri12:0911.75:32-1.75:49-0.65:377:26New Moon22Fri
23Sat12:2412.412:5811.46:22-1.56:37-0.35:357:27Waxing Crescent23Sat
24Sun1:1112.11:4811.07:10-1.17:260.25:337:28Waxing Crescent24Sun
25Mon2:0011.62:3810.58:00-0.68:160.75:327:29Waxing Crescent25Mon
26Tue2:5011.03:2910.08:500.09:081.25:307:31Waxing Crescent26Tue
27Wed3:4210.44:239.69:430.510:031.65:297:32First Quarter27Wed
28Thu4:379.95:189.310:370.911:001.85:277:33First Quarter28Thu
29Fri5:359.56:149.211:321.211:591.85:267:34First Quarter29Fri
30Sat6:339.37:099.312:271.35:247:36First Quarter30Sat
DateHigh TideLow TideSunMoonDate
AMftPMftAMftPMftRiseSet
Tidal Data Source: (8413564)

Common Questions About Southwest Harbor, ME Tides

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What time does the tide turn (slack tide) in Southwest Harbor, ME today?

Slack tide in Southwest Harbor, ME is approximately 6:45 am — midway between the next high and low tide, when tidal current is weakest. This is the preferred window for boat crossings, underwater visibility, and fishing in areas with strong currents.

Is this week a spring tide or neap tide in Southwest Harbor, ME?

Southwest Harbor, ME is currently in a spring phase. Tonight's moon is 95% illuminated. Spring tides (largest swings) occur near new and full moons; neap tides (smallest swings) occur near first and third quarter moons. Tidal ranges this week are near their weekly maximum.

What datum are Southwest Harbor, ME tide heights measured from?

Tide heights on this page are measured from Mean Lower Low Water (MLLW), the U.S. NOAA standard. A height of 0 ft represents the 19-year average of each day's lower low tide. Negative values indicate a "minus tide" — water levels below that long-term reference.

What factors can affect the tide predictions for Southwest Harbor, ME?

Tide predictions for Southwest Harbor, ME come from NOAA's harmonic analysis and are typically accurate within about ±10 minutes on timing and ±0.5 ft on height. Actual water levels can deviate further due to sustained winds, atmospheric pressure changes, river flow, and storm surge. During major weather events, be sure to check US Harbors weather pages for factors that could impact tidal predictions.

Which NOAA station provides tide data for Southwest Harbor, ME?

Tide data for Southwest Harbor, ME is sourced from NOAA Station #8413564. View the official NOAA station page at https://tidesandcurrents.noaa.gov/stationhome.html?id=8413564.

What is the moon phase in Southwest Harbor, ME tonight?

Tonight the moon over Southwest Harbor, ME is Waxing Gibbous (95% illuminated). This places Southwest Harbor, ME in a spring tide cycle, so tidal ranges are near their weekly maximum this week.

US Harbors Tidal Data

The data in our tide charts, tide tables, and tide graphs is provided by NOAA and others. These predictions are derived mathematically from numerous inputs, including data from historical tide stations and nearby locations where sensors are actively recording. As shown in the tide graph at the top of this page, “Predicted” tides (blue) are what forecasting models expect to happen. “Observed” tides (red) are those recorded by local sensors in real time, overlaid on the predictions for direct comparison. We display Observed water levels for a select group of harbors including Portland, Maine, where a physical sensor monitors water levels in real time.

LEARN MORE ABOUT OUR TIDE DATA